def stream(self):
"""
Yields Flow objects from the dump.
"""
# There is a weird mingw bug that breaks .tell() when reading from stdin.
try:
self.fo.tell()
except IOError: # pragma: no cover
can_tell = False
else:
can_tell = True
off = 0
try:
while True:
data = tnetstring.load(self.fo)
try:
data = io_compat.migrate_flow(data)
except ValueError as e:
raise exceptions.FlowReadException(str(e))
if can_tell:
off = self.fo.tell()
if data["type"] not in models.FLOW_TYPES:
raise exceptions.FlowReadException("Unknown flow type: {}".format(data["type"]))
yield models.FLOW_TYPES[data["type"]].from_state(data)
except ValueError:
# Error is due to EOF
if can_tell and self.fo.tell() == off and self.fo.read() == '':
return
raise exceptions.FlowReadException("Invalid data format.")
def stream(self):
"""
Yields Flow objects from the dump.
"""
# There is a weird mingw bug that breaks .tell() when reading from stdin.
try:
self.fo.tell()
except IOError: # pragma: no cover
can_tell = False
else:
can_tell = True
off = 0
try:
while True:
data = tnetstring.load(self.fo)
try:
data = io_compat.migrate_flow(data)
except ValueError as e:
raise exceptions.FlowReadException(str(e))
if can_tell:
off = self.fo.tell()
if data["type"] not in models.FLOW_TYPES:
raise exceptions.FlowReadException(
"Unknown flow type: {}".format(data["type"]))
yield models.FLOW_TYPES[data["type"]].from_state(data)
except ValueError:
# Error is due to EOF
if can_tell and self.fo.tell() == off and self.fo.read() == '':
return
raise exceptions.FlowReadException("Invalid data format.")
def read_tnetstring(input):
# tnetstring throw a ValueError on EOF, which is hard to catch
# because they raise ValueErrors for a couple of other reasons.
# Check for EOF to avoid this.
if not input.read(1):
return None
else:
input.seek(-1, 1)
return tnetstring.load(input)
